Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
831-299 4 Tres Pinos CA 145J TERRA NOVA TELECOM INC. 736   2023-06-24   
831-303 3 San Ardo CA 145J TERRA NOVA TELECOM INC. 736   2022-10-31   
831-309 5 Carmel CA 145J TERRA NOVA TELECOM INC. 736   2023-08-07   
831-388 8 Greenfield (Monterey) CA 145J TERRA NOVA TELECOM INC. 736   2022-11-07   
831-628 9 Tres Pinos CA 145J TERRA NOVA TELECOM INC. 736   2022-11-03   
831-634 9 Hollister CA 145J TERRA NOVA TELECOM INC. 736   2022-10-31   
831-665 5 Hollister CA 145J TERRA NOVA TELECOM INC. 736   2023-06-24   
831-667 9 Big Sur CA 145J TERRA NOVA TELECOM INC. 736   2022-11-03   
831-844 2 Big Sur CA 145J TERRA NOVA TELECOM INC. 736   2023-06-24   
831-883 6 Monterey CA 145J TERRA NOVA TELECOM INC. 736   2022-11-03   
831-887 A Monterey CA 145J TERRA NOVA TELECOM INC. 736      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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